20578005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65327}}^1$

素因数の和:65345

約数の個数: 24

約数和(自身を含む): 40764672

約数和(自身を除く): 20186667

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65327, 195981, 326635, 457289, 587943, 979905, 1371867, 2286445, 2939715, 4115601, 6859335, 20578005]

約数ペア:

[(1, 20578005), (3, 6859335), (5, 4115601), (7, 2939715), (9, 2286445), (15, 1371867), (21, 979905), (35, 587943), (45, 457289), (63, 326635), (105, 195981), (315, 65327)]